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From:   Desmond Yan <desmond.yan@broadcom.com>
Date:   Mon, 1 Feb 2021 10:32:19 -0800
Message-ID: <CAEuuh2_BH4_7bm7tTZ2VSKNv7eCjj-ZU=zcV3vKbD1H_tJRLcQ@mail.gmail.com>
Subject: Re: [PATCH] misc: bcm-vk: unlock on error in bcm_to_h_msg_dequeue()
To:     Dan Carpenter <dan.carpenter@oracle.com>
Cc:     Scott Branden <scott.branden@broadcom.com>,
        Arnd Bergmann <arnd@arndb.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Olof Johansson <olof@lixom.net>,
        bcm-kernel-feedback-list@broadcom.com,
        linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org
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Acked-by: Desmond Yan <desmond.yan@broadcom.com>

On Mon, Feb 1, 2021 at 4:24 AM Dan Carpenter <dan.carpenter@oracle.com> wrote:
>
> Unlock before returning on this error path.
>
> Fixes: 111d746bb476 ("misc: bcm-vk: add VK messaging support")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> ---
>  drivers/misc/bcm-vk/bcm_vk_msg.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/misc/bcm-vk/bcm_vk_msg.c b/drivers/misc/bcm-vk/bcm_vk_msg.c
> index eec90494777d..fc972e43258a 100644
> --- a/drivers/misc/bcm-vk/bcm_vk_msg.c
> +++ b/drivers/misc/bcm-vk/bcm_vk_msg.c
> @@ -849,7 +849,8 @@ s32 bcm_to_h_msg_dequeue(struct bcm_vk *vk)
>                                  * that is fatal.
>                                  */
>                                 dev_crit(dev, "Kernel mem allocation failure.\n");
> -                               return -ENOMEM;
> +                               total = -ENOMEM;
> +                               goto idx_err;
>                         }
>
>                         /* flush rd pointer after a message is dequeued */
> --
> 2.29.2
>

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